They don't need any particular color shell to survive.
no
The shell of a snail protects it from predators.
Snails have shells. Technically, a shell is considered to be a type of external skeleton, or exoskeleton.
snails need calcium because they use it to repair and grow there shell. common foods are cucumber or lettuce that have calcium
Every living creature needs oxygen to survive. Just as every living creature needs water to survive. For example, such as spiders. Yup, spiders do to need oxygen AND water to survive, and of course food. So the answer to your question would be yes, snails do need oxygen to survive.
Every mollusk except slugs, which have evolved to not need a shell, has a shell. Snails, clams and other bivalves have an external shell. Octopi, squid and cuttlefish have an internal shell.
No.... they have no bones whatsoever. They're completely muscle, that's why they need their shell. They use their shell for protection and to keep a main structure.
All snails need water to survive. I doubt that they will survive lack of water. First, water snails have to live in water, or else they will dry up (I know this from experience, because once my water snails crawled out too much that they crawled out of the aquarium. I found them underneath the dinner table, dried up like un-cooked pieces of macaroni.). I know garden snails will drown in water, but without water they dry out as well, and will go inside their shells and won't come out. So both types of snails won't be able to survive lack of water, in my opinion.
Snails do not shed their shell their shell is apart of their body. A snail shell will grow with the snail. I currently have 3 snails but in spring i hope they breed! I know they dont need to mate but the type i have do.. ;) i hope i helped good luck if u have a snail... ;)
All snails are neither male / female. they have both gender organs.
water if they are lake snails use lake water, they also need a closed environment and rocks or sand but i would use rocks. They will also need plants and algae or frozen foods for their valanced diet!!!!!!!!!!!GOSH!!!!!!!!
Mystery or Apple snails come in several colours and the colour has no effect on its breathing ability. Yes these species of snail have the ability to survive and breath out of water for a time.